|
Our recent publications on magma geochemistry
Downes H, MacDonald R, Upton BGJ, et al. (2004)
Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: Evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton.
J. Petrol. 45:1631-1662. Morgan DJ, Blake S, Rogers NW, DeVivo B, Rolandi G, Macdonald R, Hawkesworth CJ (2004)
Time scales of crystal residence and magma chamber volume from modelling of diffusion profiles in phenocrysts: Vesuvius 1944.
Earth. Planet. Sci. Lett. 222:933-946. Scaillet B, Macdonald R (2004) Fluorite stability in silicic magmas. Contrib. Mineral. Petrol. 147:319-329. Macdonald R (2003) Introduction to the thematic issue on Montserrat.
J. Petrol. 44:1345-1347.
Macdonald, R. (2003) Magmatism of the Kenya Rift Valley; a review. Trans. Roy.
Soc. Edinburgh: Earth Sciences 93: 239-253. Scaillet B, Macdonald R (2003) Experimental constraints on the relationships between peralkaline rhyolites of the Kenya rift valley
J. Petrol. 44:1867-1894. Macdonald, R. & Belkin, H.E. Compositional variation in minerals of the chevkinite
group. Mineralogical Magazine 66 (6): 1075-1098. Macdonald, R., Marshall, A.S., Dawson, J.B., Hinton, R.W. & Hill, P.G., 2002.
Chevkinite-group minerals from salic volcanic rocks of the East African Rift.
Mineralogical Magazine 66: 287-299. Pichavant, M. & Macdonald, R. Mantle genesis and crustal evolution of primitive
calc-alkaline basaltic liquids from the Lesser Antilles arc. Geological Society
Special Publication. (submitted) Pichavant, M., Mysen, B.O. & Macdonald, R., (2002). Source and H2O content of high-
MgO magmas in island arc settings: An experimental study of a primitive calc-
alkaline basalt from St Vincent, Lesser Antilles arc. Geochimica et Cosmochimica
Acta 66: 2193-2002. Macdonald, R., Rogers, N.W., Fitton, J.G., Black, S. & Smith, M., 2001. Plume-
lithosphere interactions in the generation of the basalts of the Kenya Rift, East
Africa. J. Pet. 42, 877-900. Scaillet, B. & Macdonald, R., 2001. Phase relations of peralkaline silicic magmas and
petrogenetic implications. J. Pet. 42, 825-845. Hawkesworth, C.J., Blake, S., Evans, P., Hughes, R., Macdonald, R., Thomas, L.E,
Turner, S.P. & Zellmer, G., (2000). Time scales of crystal fractionation in magma
chambers - integrating physical, isotopic and geochemical perspectives. Journal of
Petrology 41, 991-1006. Macdonald, R., Hawkesworth, C.J. & Heath, E., 2000. The Lesser Antilles volcanic
chain: a study in arc magmatism. Earth-Science Reviews 49, 1-76. Rogers, N.W., Macdonald, R., Fitton, J.G., George, R.W.W., Smith, M. & Barreiro,
B.A., 2000. Two mantle plumes beneath the East African rift system: Sr, Nd and
Pb isotopic evidence from Kenya Rift basalts. Earth and Planetary Science Letters
176, 387-400. Heath, E., Macdonald, R., Belkin, H., Hawkesworth, C.J. and Sigurdsson, H. (1998) Magmagenesis at Soufriere Volcano, Lesser Antilles Arc. Journal of Petrology 39, 1721-1764. Heath, E., Turner, S.P., Macdonald, R., Hawkesworth, C.J. and van Calsteren, P. (1998) Long magma residence times at an island arc volcano (Soufriere, St. Vincent) in the Lesser Antilles: evidence from 238U-230Th isochron dating. Earth Planet. Sci. Lett. 160:49-63. Marshall, A.S., Hinton, R.W. and Macdonald, R. (1998). Phenocrystic fluorite in peralkaline rhyolites, Naivasha, Kenya Rift Valley. Mineralogical Magazine 62, 477 - 486. Dalton. J.A., Lane, S.J. (1996) Electron microprobe analysis of Ca in olivines close to grain boundaries: the problem of secondary fluorescence. Am Mineral 81(1-2), 194-201. Dawson, J.B., Pyle, D.M. and Pinkerton, H. (1996) Evolution of natrocarbonatite from a wollastonite nephelinite parent: evidence from the June 1993 eruption of Oldoinyo Lengai, Tanzania. Journal of Geology 104: 41-54. Dawson J.B., Pinkerton, H., Norton, G.E., Pyle, D.M., Browning, P., Jackson, D. and Fallik A.E. (1995) Petrology and geochemistry of Oldoinyo Lengai lavas extruded November 1988: magma source, ascent and crystallisation. In: IAVCEI Proceedings in Volcanology 4. Carbonatite volcanism of Oldoinyo Lengai - petrogenesis of natrocarbonatite. Bell K., Keller J. (eds.) Springer-Verlag, Berlin, pp 47-69. Dawson, J.B., Pinkerton, H., Pyle, D.M. and Nyamweru, C. (1994) June 1993 eruption of Oldoinyo Lengai, Tanzania: exceptionally viscous and large carbonatite lava flows and evidence for co-existing silicate and carbonate magmas. Geology 22, 799-802. Gilbert, J.S., Bickle, M.J. and Chapman, H.J. (1994) The origin of Pyrenean Hercynian volcanic rocks (France-Spain): REE and Sm-Nd isotope constraints. Chemical Geology 111, 207-226. Lane, S.J. and Dalton, J.A. (1994) Electron microprobe analysis of geological carbonates. Am Mineral 79, 745-749.
|